Mathematics Middle School

Which is an equivalent expression of:
−2(5r+ 3) + 9r?
A) −19r – 3
B) −10r – 6
C) −10r + 3
D) −r– 6

Answers

Answer 1
The answer is D) -r-6

if you distribute the -2 to the 5r and 3 you get -10r and -6.

-10r + 9r = -r (then just add on the negative 6)

-r-6
Answer 2
Answer: D

Explanation:

Distribute -2 through the parentheses

Then combine like terms

Related Questions

What type of triangle is this triangle?

acute scalene

obtuse isosceles

obtuse scalene

acute isosceles

Answers

Answer:

Obtuse scalene

Step-by-step explanation:

Answer:

obtuse scalene

Step-by-step explanation:

Scalene means that none of the sides are equal.

Isosceles means that two of the sides are equal.

Obtuse means an angle in the triangle is larger than 90 degrees.

Acute means all angles in the triangle are smaller than 90 degrees.

None of the sides are equal so this triangle has to be scalene and the angle in the bottom right is larger than 90 degrees so this triangle is obtuse.

Hope this helps! :)

RED YOU ARE VERY SUS

Answers

Answer:

YES YES HE VENTED ITS NOT ME DONT WORRY

Answer:

red do be looking sus tho

Step-by-step explanation:

send him outta the airlock

A bag of nuts weighs 3 ounces and costs 50 cents. What is the unit price? Round to the nearest cent.
50 ÷ _____ = _____-
per ounce

Answers

Answer:

50 cents/3 ounces = 16.67 cents/ounce

Step-by-step explanation:

maybe

The answer is 50 by 3 =17

Which number in the following equation represents the coefficient?



7y + 2 = 23

Answers

Answer:

7

Step-by-step explanation:

The coefficient is the number used to multiply a variable.

Y is the variable and 7 is the coefficient.

Answer

y=3

Step-by-step explanation:

21/7=3

7 times 3 = 21

21 +2=3

Please DO ASAP! BRAINLIEST! POINTS! MATH PROPERTIES

Answers

Answer:

The first one is 7 because if you distribute it carefully it might kead u to the correct answer

The second one is 9^5 because I just did the math

and the 3rd one is John had 14 marbles left

Step-by-step explanation:

The first one is 7 because if you distribute it carefully it might kead u to the correct answer

The second one is 9^5 because I just did the math

and the 3rd one is John had 14 marbles left

write the equation in slope-intercept form of the following table

Answers

3 (6 is the answer 4*5

Answer:

Step-by-step explanation:

Take any two points and find the slope.

(3,7) ; (9,5)

Slope =[tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]

         [tex]=\frac{5-7}{9-3}\\\\=\frac{-2}{6}\\\\=\frac{-1}{3}[/tex]

Equation: y -y1 = m(x -x1)

[tex]y - 7 = \frac{-1}{3}(x - 3)\\\\y -7 =\frac{-1}{3}x -3*\frac{-1}{3}\\\\y -7=\frac{-1}{3}x+1\\\\y = \frac{-1}{3}x+1+7\\\\y=\frac{-1}{3}x+8[/tex]

A number cube has sides numbered 1 through 6. The probability of rolling a 2 is 1/6.

What is the probability of not rolling a 2?

Enter your answer as a fraction, in simplest form, in the box.

please actually answer.

​

Answers

Answer:

5/6

Step-by-step explanation:

6/6 - 1/6 = 5/6

5/6 because 6/6-1/6=5/6

A restaurant customer left $1.35 as a tip. The tax was 4% and the tip was 15% of the after tax cost.....

Answers

Answer:

D

Step-by-step explanation:

I'm not 100% sure, but it looks like a proportions problem, and in problems like these, you need 3 numbers, so I'm pretty sure you need all of the information. <3

Answer: The anwser is C

Step-by-step explanation:

It is asking for the total and the tax was 4% of it is not neede at all i did a question simalar to this so yeah.

1. How many terms are in the following expression
5x^2 + 2x + 4
2. What is the value of 4x - 6 ÷ X when X = 6

Answers

1. 4 terms bcs each term is separated buy a + sign
2.
4x-6:x
24-6:6 = 23

Sally designs web pages for customers she charges $117.50 per webpage; however she must pay a monthly rental fee of $650 for office. Write an expression to determine her take-home pay after expenses. If Sally design 5 web pages last month what was her take-home pay after expenses?

Answers

Answer:

135.50 x 5  = y    How much money she makes without paying rent

Step-by-step explanation:

y-650 = the amount of money sally has after paying rent

4,902 × 0.001 is the same as 4,902 ÷ 10 to the power of 3
True or False?

Answers

Answer:

False

Step-by-step explanation:

4902x0.001 = 4.902

4902/10 = 490.2

490.2^3 does not equal  4.902

How can you figure out the diameter of a circle when you just know the area of the circle?
(Please answer in the simplest way) Thanks!

Answers

Answer:

yes

Step-by-step explanation:

If you have the area you can divide it by pi to get r squared. You square root this to get r and then just times your answer by 2. (r is the radius)

please help ill give brainliest

Answers

Answer:

divide by -3 and reverse it

Step-by-step explanation:

Trust me I got u fam

Answer:

divide by -3 and reverse

HELP I WILL GIVE BRAINLIEST

Answers

Answer:

u tick the option A then y u r asking??

I will award brainliest here

Answers

Answer:

2ND ONE

Step-by-step explanation:

I think it’s the 2nd one

Find the perimeter.

36 cm
24 cm
33 cm
30 cm

Answers

Answer:

36 cm

Step-by-step explanation:

p = all sides added up

so we do 6+6+3+3+9+9 = 36 cm

I agree36 should be the correct answer it's just adding.

How do you evaluate functions?

example:
Find the output, B, when the input, a, is 6.
b= -1 - 7a

Answers

The answer would be 41
Answer is 41! I believe so

hey u plz help me me need help

Answers

The answer is b lol

PLEASE DONT PUT FAKE ANSWERS THIS IS A BIG PART OF MY GRADEE BRAINLYY

Answers

Answer:

C

Step-by-step explanation:

A. is incorrect because 2 is the exponent

B. is incorrect because 2 is the denominator

D. is incorrect because it does not contain a 2

George is putting trim around his rectangular deck, including the gate. He will need 46 feet of trim to do the entire deck. If the deck is 15 feet long, how wide is the deck?
A.
6 feet
B.
16 feet
C.
8 feet
D.
23 feet

Answers

Answer:

C: 8 feet

Step-by-step explanation:

You have to find the parameter.

To do that you add all the side lengths together.

15+15=30 now you have to subtract 30 from 46 to find how much room is left.

46-30=16 now divide your answer by 2 to get the 2 remaining sides of the deck.

16/2=8 so the answer is 8!

Answer:

C

Step-by-step explanation:

Mrs. Cerruti uses 7.7 gallons to drive 245 miles. How far could she drive with 10.3 gallons?

Answers

Answer:

about 327.7 miles

Step-by-step explanation:

Proportions :

7.7 gallons / 245 miles = 10.3 gallons / x miles

x is about 327.7 miles

NEED ANSWERS ASAP 10 QUESTIONS IF RIGHT WILL GIVE BRAINLIEST

Answers

Sorry couldn’t do 2 but did the other 3

Max sold one third of his old stamps to buy 6 new stamps. He now has 15 stamps. How many did he start with?

Answers

Answer: 9 1/3

Explanation:
Let total no. Be ‘x’

X - 1/3 + 6 = 15

X - 1/3 = 15 - 6
= 9
X = 9 + 1/3
X= 9 1/3

The answer is 9 1/3 tip if you search quizlet it tells you the answer :)

Please help I need text evidence so please include that in your response I will give you brainlest if you have. Good detailed answer I’m sorry if this is a lot to ask for the story is freak the mighty btw

Answers

Answer:

cite,evidence,cite,evidence, summary it basically means answer the question give evidence from the story explain do it again and then sum up your writing, i hope this is right.

Step-by-step explanation:

Find the area of each shaded region please help i just need help with C and D

Answers

Answer:

78

Step-by-step explanation:

I’m pretty sure that the answer is 78

will give brainlest to the answer to my question

Answers

Answer:

9. 1

10. 7

Step-by-step explanation:

Answer:

9: 1

10: 7

Step-by-step explanation:

3-2=1

9-2=7

QUICK!! TEN POINTS!! BRAINLIEST FOR WHOEVER GETS IT RIGHT!!


What are the coordinates of point S?

(-3/41/2)

(-1/2,3/4)

(1/2,3/4)

(3/4,1/2)

Answers

D...................
(-3/4, 1/2). You are going to the left(negative) 3/4 and up(positive) 1/2

i saved the best for last :]

Answers

Answer:

a¹⁸b²⁴c⁵⁴

Step-by-step explanation:

(aᵇ)ᶜ = aᵇᶜ = aᵇ×ᶜ

(-aⁿ)ᵒᵈᵈ = -aⁿ

(-aⁿ)ᵉᵛᵉⁿ = aⁿ

aⁿ × aⁿ = aⁿ⁺ⁿ

_________

In this situation, 6 is an even exponent which means that the negative coefficient of this 9th degree monomial will be positive. Now the only step is to multiply the exponents by the exponent outside of the perenthesis which is 6.

so (-a³b⁴c⁹)⁶ = ((-a³)⁶(b⁴)⁶(c⁹)⁶) = ((a³ˣ⁶)(b⁴ˣ⁶)(c⁹ˣ⁶)) = ((a¹⁸)(b²⁴)(c⁵⁴)) = a¹⁸b²⁴c⁵⁴

Need help with this word problem

Answers

30,60,90 so probably you have to explain the a angles between these three numbers and there is a proportional representation and you need to explain her earnings

Hello, I would really like some help on this!! Please leave an explanation of how you got your answer! Thank You!

Answers

1a) To find the total area, you must find the area of the triangular part that is missing, then subtract this from the area of the rectangle. For the triangle’s area, you need to know the width (2m) and length (2m). For the rectangle’s area you need to know the width (3m) and length (4m).
1b) the total area is 10m^2 (10 meters squared). This is found by subtracting the triangle (.5x2x2=2) from the rectangle (3x4=12).
I don’t know how to answer this question sorry. I’m just answering so the other person can get brainliest.
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